Practice: Which of the following is true in regards to HNO3?
a) It has a bitter taste. b) It produces H+ ions in water.
c) It exists as only molecules when dissolved in H2O. d) It decreases the acidity of the solution.
An acid represents a covalent compound composed of a hydrogen ion and an anion
Identifying Acids
Concept #1: Many acids have the hydrogen ion at the beginning of their chemical structure, but there are exceptions.
Example #1: Which of the following does not represent the possible structure of an acid?
a) HBr b) HIO3 c) CH4 d) HOCI
Concept #2: Acids belong to a distinct class of compounds based on their behavior when dissolved in water.
Example #2: H2SO4 is added to large container of water. How is the solution different from the original water?
a) The solution has fewer hydrogen ions.
b) The solution turns blue litmus paper red.
c) The solution turns red litmus paper blue.
d) The solution has more water molecules.
